© 2002-2004 Caddock Electronics, Inc.

Sales and Corporate Office

1717 Chicago Avenue

Riverside, California 92507-2364

Phone: (951) 788-1700

Fax: (951) 369-1151

Applications Engineering

17271 North Umpqua Hwy.

Roseburg, Oregon 97470-9422

Phone: (541) 496-0700

Fax: (541) 496-0408

e-mail: caddock@caddock.com • web: www.caddock.com

Certain products shown in this catalog are covered by one or more patents, there are also patents pending.

25 Watts

1.00K

0.020 Ω

Model No.

Power

Rating

Resistance

Min.

Max.

Dielect. Strength

V

MP725

*

Max.

Voltage

Terminal

Solderable

200

1,500

Specification

Resistance Tolerance:

±1% for 0.050Ω up to

1.00KΩ, ±5% for 0.020Ω up to 0.049Ω (5% and 20%

are available for most resistance values).

Temperature Coefficient:

TC referenced to +25°C, ∆R taken at +150°C

0.50 ohm and above, -20 to +80 ppm/°C

0.050 ohm to 0.49 ohm, 0 to +200 ppm/°C

0.020 ohm to 0.049 ohm, 0 to +300 ppm/°C

Thermal Shock:

Mil-Std-202, Method 107,

Cond. F,

Momentary Overload:

1.5 times rated power

with applied voltage not to exceed 1.5 times

maximum continuous operating voltage for 5

seconds,

Load Life: 2,000 hours at rated power,

percent + 0.0005 ohm). Power rating dependent

upon case temperature. See derating curve.

Moisture Resistance: Mil-Std-202, Method 106,

Shock: 100G, Mil-Std-202, Method 213,

Cond. I,

Vibration, High Frequency:

Mil-Std-202,

Method 204, Cond. D,

+ 0.0005 ohm) max.

Terminal Strength:

Mil-Std-202, Method 211,

Cond. A (Pull Test) 5 lbs.,

+ 0.0005 ohm) max.

Insulation Resistance: 10,000 Megohms, min.

The resistor is electrically isolated from the metal

tab.

DWV:

The

dielectric strength rating of

1500 V

between terminals shorted and either the metal

surface the part is mounted to or a metal clip in

contact with the top surface of the part.

Packaging Note:

Quantities of 250 pieces or greater, will be

supplied in tape and reel packaging. The full reel

quantity is 1250 pieces.

MP725 Surface Mount Power Film Resistors

D-Pak Style Surface Mount Power Package including Metal Tab - 0.020 ohm to 1.00 Kohm

Ordering Information:

Use your thermal design experience with power semiconductors in

D-Pak style power packages. This experience will help you get the most out

of this unique family of surface mount power resistors. The thermal design

issues are the same where power handling capability is based on the case

temperature which is maintained in your design.

MP725 Surface Mount Power Film Resistors introduce our proven

Micronox

mount power package. The non-inductive design makes this resistor ideal in

high frequency communications, power switching circuits and snubbers.

The special performance features of our patented MP725 Surface Mount

Power Film Resistors include:

DERATING CURVE

The case temperature is to be used for purposes of

establishing the maximum applied power. See Derating

Curve. The case temperature measurement is made on the

metal mounting tab against the molded body.

Derate

appropriately for the ambient temperature range, the thermal

resistance of the mounting surface, and the temperature

limitations of the adjacent materials (such as glass epoxy).

Derating ( thermal resistance ) is 0.200 W/°C ( 5.0°C/W ).

*

Standard Resistance Values:

0.020 Ω

0.025 Ω

0.030 Ω

0.033 Ω

0.040 Ω

0.050 Ω

0.075 Ω

0.10 Ω

0.15 Ω

0.20 Ω

0.25 Ω

0.30 Ω

0.33 Ω

0.40 Ω

0.50 Ω

0.75 Ω

1.00 Ω

1.50 Ω

2.00 Ω

2.50 Ω

3.00 Ω

3.30 Ω

4.00 Ω

5.00 Ω

7.50 Ω

8.00 Ω

10.0 Ω

12.0 Ω

15.0 Ω

20.0 Ω

25.0 Ω

27.0 Ω

30.0 Ω

33.0 Ω

40.0 Ω

47.0 Ω

50.0 Ω

56.0 Ω

75.0 Ω

100 Ω

120 Ω

150 Ω

200 Ω

250 Ω

300 Ω

330 Ω

400 Ω

470 Ω

500 Ω

560 Ω

750 Ω

1.00 K

25

100

150

CASE TEMPERATURE, °C

0

20

40

100

80

60

Power dissipation is 2.5 watts, at an ambient temperature of

25°C, when mounted on a double sided copper board (2 ounce,

G-10 or FR-4) 1 inch x 1 inch x .063 inch (thick).

MP 725

10.0

1%

.040 ±.018

(1.02 ±.46)

.320 ±.010

(8.13 ±.26)

.200 ±.010

(5.08 ±.26)

.053 ± .007

(1.35 ± .18)

.030 ± .004

(.76 ± .10)

.325 ±.020

(8.26 ±.51)

.250

(6.35)

.110 ±.010

(2.79 ±.26)

.032 ±.003

(.81 ±.08)

.058 ±.007

(1.47 ±.18)

.025 ±.004

(.64 ±.10)

.070 ±.010

(1.78 ±.26)

.160 ±.010

(4.06 ±.26)

.275

(6.99)

Heat sink

height

Scale:

1.5X

Dimensions in inches and (millimeters)

Soldering Note:

During surface mount

soldering the soldering temperature profile must

not cause the metal tab of this device to

exceed 220°C.

PACKAGE DIMENSIONS

.310

(7.87)

.335

(8.51)

.070

(1.78)

.150

(3.81)

.100

(2.54)

.100

(2.54)

.065

(1.65)

.065

(1.65)

FOOTPRINT FOR

SOLDERABLE CONTACT AREA

MP725 - 10.0 - 1%

Resistor Value:

Tolerance

Model Number:

Custom resistance values can be

manufactured

for

high

quantity

applications. Please contact Caddock

Applications Engineering.

Measurement Note:

For the specifications, resistance

measurement shall be made at the

foot of surface mount formed terminal.

New

27.1 IL101.0804